I have. It is a simple process. Get a flat head screw driver and pop it out. If you are anal retentive, get a seal puller. Either way, the seal will come out without much effort.
Installation, you can press it in with your fingers since the ribbed design does that for you. Otherwise, once it is in place with your fingers, tap it gently in with the same screwdriver and a hammer starting at 12 o'clock to 3, 6 and 9 o'clock.